面向未来全光网络光通信的光纤放大器和下一代照明光源的开发，基于量子点高浓度掺杂制备出量子点复合材料是最佳选择之一，有望突破稀土和染料光源发光波长固定，难以调谐，容易老化等“瓶颈”。本项目拟以我们近年发展的新型Sol-Gel多组分磷酸盐介孔玻璃，运用溶胶凝胶法直接合成含有ZnO/CdO/PbO量子点前驱体的AlPO4基介孔玻璃和光纤，然后通过气相法（以S，H2S为气源与介孔玻璃中Zn, Cd, Pb反应）在该载体中原位生长组装硫系量子点（一种尺寸以及多种尺寸），实现宽调谐多波长发光裁剪。运用多种先进材料表征手段深入研究介孔尺寸、生长工艺（温度，浓度，时间等）对量子点尺寸和质量的影响，量子点与介孔材料相互键合作用机理，量子点的发光性能和非线性效应。在此基础上，优化多种量子点组装磷酸盐介孔玻璃和光纤制备方案，实现多种量子点的高浓度，致密（化学键合），低团聚组装，以实现高效超宽调谐光源的光学材料。

With the developments of future optical fiber amplifier in all-optical-amplifier and next generation light source, quantum dots (QDs) high doped nano-composites is one of the best choices. It has the advantages of tunable fixed wavelength and high durability over rare earth and laser dye doped materials. This project is based on our recently developed sol-gel multicomponent phosphate mesoporous glass via the in-situ introduction of QDs precursors (ZnO/CdO/PbO) in the sol-gel process. To achieve the wide tunable multi-channel photo luminescence (PL), the sulfide QDs (single size or mixed sizes) will be in-situ grown in the mesopores via the vapour phase reaction method, in which the vapour phase S/H2S reacted with Zn/Cd/Pb cations in the glass network. Detailed material characterization by a large array of advanced analytical methods will be carried out, to reveal how the size and quality of QDs have been controlled by the mesopore size and growth process (temperature, concentrations, time et al.), the bonding between the QDs and mesoporous matrix, the PL and Nonlinear Optical properties. The QDs fabrication process in the phosphate mesoporous glass and fiber will be optimized based on the structural characterization, aiming at the high concentration, close-packed, aggregation free QDs doped glass and fibers. Thus, the novel PL materials with the high efficiency, tunable ultra-wide bands will be obtained.